Paper-stripping device for printing-presses.



-H. o. GAMMBTER. PAPER STRIPPINGDEYIGE FOR PRINTING PRESSIISl APPLIUATION FILED MAY 14, 1908.

970,441 Patented sept. 13,1910.

fa-l

.for use in connection with an olice UNITED T OFFICE.

HARRY o. GAMMETER, or BRATENAHL, oHIo, AssIGNoE To THE AMERICAN MULTL GRAPH COMPANY, or CLEVELAND, OHIO, A CORPORATION or OHIO.

PAPER-STRIPPING DEVICE FOR PRINTING-PRESSES.

To all whom it may concern:

Be it known that I, HARRY C. GAMMETEP., a citizen of tbe United States, residing at Bratenahl, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Paper-Stripping Devices for PrintinU-Iresses, of which the following is a full, c ear, and exact description, reference being had to the accompanying drawings.

The object of this invention is to provide a very simple and eiiicient mechanism for stripping the paper from a printing couple.

The invention is particularly well adapted printing press ofthe type known as the multi* graph or the Gamnieter printer, wherein there is a rotary drum carrying rows of individual type, the paper being fed between such drum and a rotary impression platen; In such machines, I have heretofore provided stationary stripping 1nembers which engage the edge of a sheet-of paper when of full width, and prevent its clinging to the printing duim, there being a tendency to cling due to the adhesivecharacter of the ink or inky fabric, or to frictional electricity.

In the present invention, I provide a removable stripping device, which may be used when theA paper is of less than the .maximum width. This device consists of a strip of material so held that it extends over the margin of the/paper as it passes between the printing cylinder .and the impression.

f laten, the strip thus extending crosswise eyond the ends of `the successive lines of type, as they are brought into coperation with lthe platen. The strip is carried by a clip which is adj ustably seated on vthe front. guard plate` of the machine.. To prevent marring of the type should the strip be improperlyplace'd and'impressed by the type,

form the strip preferably of paper or other comparatively soft material, and I carry it removably by the clip, so that, if it is impressed by type, it is simply thereby drawn .out of theclip and fed out of the rear-most side of the machine with the paper.

Thus no harm is done by accidental displacement.'

'The invention comprises broadly a paper stri per 'of comparatively soft material, as wel asany paper stripper removably held so through the machine.

platen.

A being fed ,by han guard 1plate and adjustfitinto such posi-t Specification of Letters Patent.-

Application filed May 14, 1908.

Patented Sept. 13, 1910. Serial No. 432,776.

that in -case of accident, it may be fed The particular embodiment of the stripper shown 'and ,hereinafter more fully described is also comprised within my invention.

As shown in the drawings, Figure' 1 is a front elevation of a Gammeter printer with my paper stripper applied thereto; Fig. 2 is a portion of a vertical erosssection throi'i-'fliv the same; Fig. 3 is a perspective view of te stripper; 4 is a detail near the' platen end.

As shown in Figs. 1 and 2, the printing machine shown comprises a frame 10, a' printing drum 11', having rails 12, between which mayl be mounted rows of individual type, which cooperate with a suitable soft under-running rotary platen 13. The printin g drum is shown as driven by a. crank l5', which, through gears 16 and 17, drives the shaft 18 on which theA drum is moi'inted.. Mounted in the recess in this drummay be ribbon spools 19 carrying' a ribbon adapted to extend around the drum over the type to ink it.

To feed the paper, there may be employed a lower feed roll 20, continuously driven, an upper feed roll 21, mounted on pivoted arms 22 and controlled by a earn 23 on' the printing drum. Suitable stop fingers 24 may .be depressed whenever the' upper '-roll 2'1 is drawn out by means of aprojection on one of the arms .22 operating an -arln on the rock shaft 25, on which the l'ingers 24 are keyed. This paper feedfis substantially the same as that shown in my prio-r Patent' No. 846,992, and operates to feed the' paper to the impression line of the -drum -and In inu'lt-igr'aphs and G'annneter .printers made in accordance with the above described construction, there is a. front guard plate 30, st-ationarily carried by the frame ofthe nia.- chine and extending across the printindrum asuitable .distance in front there and in front of the aper feed.' The lower portion of this guar plate,intermedate ofthe parts by which it i's fastened to thev frame, is turned inward, as shown at` 31, to form a convenient nido-way for the paper d"g to the feed rollers.; I this mount my removable. poner stripper on I.; lateral y that it may lie over the margt'f" the paper being fed, the other margin of the paper being in line with one of the permanent paper strippers carried by the base ofthe machine at the end of the platen, as shown in my application Serial 339,909. These permanent strippers consist of a bentover piece of metahas sho n at 35, adapted to lie 'on the upper and ower sides of the sheet.

My removable stripper consists of the strip 40 of paper or similar material, for4 easily passed over the upper edge of the guard plate, and this cl'ip'has a spring action ,by reason of being bent closer together at 45 and 46.

To place my removable paper stripper in position, the strip is Simply passed into the space over the guard plate and'betweenthe drum and platen, and the clip is shoved down onto thel guard plate. The stripper' ,may be located at any point along the guard plate, beingso placed as toextend over one margin of the paper, when the other mai-n is in one of the lpermanent strippers. y

this'means, Aany sizeof paper may be accurately and positively guided through the machine and 1s prevented from clingingto the printing'drum. If Vthe paper stripper is placed too close to the type form, so that,"

' in rotating, the type impresses the stripper be the result if the stripper were made of 1 metal. l

I-Iaving thus described my invention, I,

40, this strip is, by such action drawn out of the clip and fed out of the rear of the machine, and no damage .is done, such as wogld claim 1. The combination with a rotary printing couple, of a stripper projectin from its support in the general direction o travel of the couple and so held'as to bereadily removableby a vpull in the direction of its lenfrth, and having a free end .portion extent ing between the couple.

2. The'coiilbi'nation, with a printing cou ple, of a stri pper comprising a holderand a strip frietiorially retained thereby but removal'ile in the direction of its length, said strip projecting from the holder between the menclbers ot the couple towardthe direction of their .common travel; i f

3; The combination" with a printing couple, 'of a stripper having a spring clip and ai strip normally held thereby but adapted to be fed through themaclf ine in case of displacement,

4. ,Thecombinatioln with a printing couple, one member of which is'adapted to turn on an axis, and a stripper having a strip adapted to extend between the members oi the couple and being so held that if impressed by the members 1t may be Withdrawn from its holding device and fed through the couple.v

5. The combination, with a printing couple, one member of which is adapted to turn on an axis, and a stripper having a removable spring clip whichholds a soft strip adapted to entend between the members of the couple, said strip being so held that if impressed by the members it may t withdrawn from the clip and fed throu the couple. A

6. The combination, with a printing member and an impression platen, one of which is mounted to turn on an aXis,.a stripping strip, and means for frictionally and removably holding the same on the intake side of 1the couple, While allowing excessive pres' sure to withdraw thefstrip. in the direction of travel of the paper being printed.

7. The combination, with a printing couple, of a stripper comprising a spring clip 4adapted to be mounted on the edge of a plate, and a strip rictionally held by said cli 8. The combination with a printing couple, of a removable stripper having its body separable from its hea A9. The combination with a rotary printing couple, mechanism for feeding paper thereto, a removable stripper having a frictionall held member adapted to extend between t e members of la couple and be pressed by the couple.

10. The combinatiom with a rotary print ing drum, a rotary under-running impression platen, paper feed rollers, means mounted'on the drum for controlling such feed rollers whereby paper may be fed at the proper time between the drum and platen, and an adjustably located stripping device extending over the feed rollers and adapted to pass between the drum and platen adjacent to the type form on the drum.

11. rlhc combination of a rotary printing couple, a guard plate in front thereof, a stripping device adjustably mounted on said guard plate, and a paper feeding device located between the guard plate and printf'- ,ing couple, and bel'lcath the stripping de vice. i

112. The combination with the frame of a machine, of an impression platen and a surnxonnting rotary type earryingdruln, of a guard plate carried by the frame of the removed from its holding. device if imlio macliine substantially in front of the line of 'coperation of the di'um and platen,

paper -'eedv rolleis located substantially bed tween the guard plate end tbe platen, and

e stripping device .ceii'ied bythe guard 'plate and 'extending ecioss the feed rollels end between the drum and oletei'i.A v

18. The combination Withtlie freine of e machine', of an impression platen and a sui'n mounting rotary type carry/infr drum, of e guard. plate carried by the reine of the machine substantially in front of the line of platen and a rotary type carrying drum, of

.e guard plete cen'ied Substantially in iiont of the line of eoperation of the drum and platen, and a. stripping device carried by the guard plate and extending between the drum and platen said stripping device comprising u sp1-ing clipv adapted to be clamped on the upper edge of the gua-rd plete, and a soft i flexible strip frietionally clamped to the clip n,

by Ineens of e ljportion of the clip being bent 3e onto the strip.

15. Ae a new article of manufacture, :i stripping device comprising e and e comparatively sett neii-inetallie stiip ie movebly held thereto. 35 1G. As e new article of manufacture, e Stripping device cemprising e. metallic head, ende strip of pepe1- fictionally held, theiete by being clamped between membefs et the heed. ie 17. A stripping device comprising a sheet metal head having Wings bent over ont@ the body 0f the heed, and e exible non-metallic sti-ip iexnevelrily clamped by said Winge against said body. t5 18. The combination with retay print-y ingjcquple, of e removable end 'afljnete-ble strippingdevice,'seid stripping device coin- .prising e spring clip, and e stip einen metillic flexible materiel rictienallyclefm pcd 50 theiyjete. v

ln testimony whereof, l lieieunte my signature in the presence of two Witnesses.

HARRY C. GAMMETER.

lVitneeses:

ALBERT H. BATES, A. J. HUDSON, 

